Friction-disk for friction-clutches.



CHARLES H. COOK, 0F GARIDINER, MAINE, ASSIGNOR TO UNIE'LEI? SEE-633; MAGHINER-Y COMPAHY, OF PATEBSOIQ NEW JERSEY, A GOHPGRATIQJE? OF 333W JERSEY.

ERECTION-DISK FOR. FRICTIUN-CLUTCHES.

Sgaecification of Letters retest.

Patented Sept. 5, illifi.

' Application filed Deecznber 27, 1915. Sex-1211510. 883370.

State of Maine, have invented certain new and useful Improvements in Friction-Disks for Friction-Clutches; and I do hereby declare the following to be a. full, clear, anti exact description of the invention, such as will enable others skilled in the art to which it a-pperteins to make ancl use the same.

This invention relates to friction disks for friction clutches. I

A common form of friction. clutch consists of a. driving pleteaml a driven plate concentrically mounted and a. friction disk loosely mounted on the shaft between them. The friction disk is usually a solid leather disk, and any oil which works in between the driving and. driven plates coats the surface of the leather olisk. so that it loses its frictional resistance. When the friction disk having a. coating of oil is pressed between the driving plate and driven plate, the plates will slip, or move relatively to one another, and generate sulllcient heat to burn the leather disk. After the leather has been burned, it soon disintegrates, and has to be replaced.

The primer object of the present invention is to improve the construction and arrangement of friction disks of friction clutches to give thorn a greater rigidity and Wearing power and. improve their eiiicien cy.

With this object in view, the inventionconsists in the improved friction clisk hereinafter described and. claimecl.-

The various features of the preferred form of the invention are illustrated in the accompanying drawings, in Which-- Figure l is at side elevation of the inipro ed friction disk; Fig. 2 is a section of the friction disk taken on the line 2-2 of Fig. 1; Fig. 3 is a side elevation of the body plate of the friction disk with the friction elements removed; Figl is a. perspective view of one of the friction elements of the (lisk, and Fig. 5 is a View in side elevation showing on outsole shoe sewing ma,- chine of Well-known construction embodyin; the invention.

The friction disk shown in the drawing consists of a. metallic body plate 10 carrying a series of friction elements or inserts 12. The body plate has central opening 14- to receive the driving elicit, soul has a series of radial slots .16 extending from the control opening 14. close the periphery of the plate. The friction elements or inserts 12 consist of blocks of leather, or similar meterial, having a pair of longitudinal grooves 18 and a. transverse groove 20 former hy slitting the edge of the leather block; The

grooves 18 are spaced sport in the body of the leather element by (llSillfiIlCE about equal to the Width the slot 16, and the groove 20 has a olepth substantially equal to therlistence of the end of the 1.6 from the pcripliery of the horly disk 10. The friction element niisy beinserted in the slots 16 by starting; the element in the central opening 1% with the edges of the slot 16 in the grooves 18, and slidin the element out to the periphery of the plate 10. The groove 20 will permit the frictional blocks to he forced. radially outward beyond the end of the slots 16 so that the enclof the frictional. element will be substantially flush with the peri 'ihery of the disk. After the friction elements have been placed. in, the slot 16, they may he held from redial movement by 23. pair of washers 22, one phase-(l on each side of the plate 10, and riveted in position. The Washers 22 have central opening substontially the size of the opening 14.- of the body plate, and aid. in building up a. hearing for the friction (lick. l l

The invention isillustrstoil as embodied.

in a. well-known type 01 outsole shoe sewing machine. This machine has a. driving shaft 2-1 provided with :1 loosepulley 2G and tight pulley 528. The friction clutch consists of a. driving disk 30 end a driven disk 82 which have the improved friction disk loosely mounted on the shaft 24; between them. The driving disk 30 is splincd to the shaft 24, and has a hub which llQlll'S against 2). ion-- gituclinolly movable block 36. The block 36 is moved back and forth toward. the disk 36 by means of a Wedge 38 which is operated by e treadle 4.0. The driven disk 32 is ottechecl. to a sleeve which is loosely mounted on the shaft 2 The sleeve can ries e bevelccl gear which meshes with a. hevelekl gear 4.6 on the cross shaft 4-8. The cross shaft 4.8 in turn has a driving pulley 50 connected "collect and prevent my 52 with at driving icy on the he" the machine. With tn 5; ccnsti'zicticn, the treadle is moved forces the driving down, the w 15c blue: 3%;

disk 30 tow (2. the driven disk to clamp the friction-disk between them. The-grip of the iricticn disk upcn the driven disk in turn imparts motion the cross shaftstruction especially mflvantagcons in that the number of frictional elements cfecsed or m es can be deacccrding to the power required ion elements also may be easily insc or Med for replacement when they become Worn out.

The number and particular arrangement of the time on. elements an the body plate is capable great initiation, and can be :11- i'zingecl to meet any mechanical demand, and except limited by the claims the invcnticn is not confined to the arrangement shown.

Having thus described the invent-ism,

frictional inserts having slitted edges inter locl zed with the edges of the slots of the v 8. A friction clutch disk comprising a body plate centrally perforated and having aplurelity of radial slots terminating short of the edge of the plate, and frictional inserts having slitted edges interlocked with the edges cf the slots. Y 7 4. A friction clutch disk comprising a body plate centrally perforated to receive a shaft and having a plurality of i'adial slots opening at their inner ends into the shaft aperture and terminatingwithin the edge of the plate, and friction elements having their edges slittcd and inserted into the slots and. overlapping the surface of the plate, said elements being at less length than the distance from the edge of the she apeture to the plate rim, and means secured to the plate for engaging the inner ends of the inserted elements. I

CHARLES H. coon. 

